package com.hmdp.utils;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import com.hmdp.dto.UserDTO;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;
import com.hmdp.entity.User;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * 第二个拦截器
 * 登录校验拦截器
 * 1.判断是否需要拦截（ThreadLocal中是否有用户)
 * 2.有用户，则放行
 * 3.没有用户，则拦截，返回401状态码
 */
public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //1.判断是否需要拦截（ThreadLocal中是否有用户)
        if(UserHolder.getUser()==null){
            //没有，需要拦截，设置状态码
            response.setStatus(401);
            return false;
        }
        return true;
    }
}
